Card-writing platen for type-writing machines.



CARD JRlTlH Pil-NEN PGR TYPE WRiING MACHNES.

LlCATEON min fsa. 11.1914.

fatented Nov. 16, 1915.

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. i? GERLSON: CARD WRITING FOR TYPE WRZTlNG MGHNES,

Mmm. @a msn FEB. 11, 3914,

1,160,594. Bamm Nov. i@ 1915.

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Il N MED STATES TENT CARL GrAIBIlEtIELSON,4 OF SYRACUSE, NEW YGRK, ASSIGNOR TO L. C. SMITH 8:, EPs-GS. TYPE- VRTER COMPANY, OF SYRAUSE,y NEVI YORK, A CORPOBTON OF NEW YORK.

CARB-WRITING PLA'I'EN FOB TYPE-RITING MACHINES.

Specification of Letters Patent.

Patented Nov. 15, it.

Application led February il, 1914. Serial No. 818,135.

, Be it known that l. Cani. Gfunui-insox, a citizen of the United States, and resident ot Syracuse, county of Onondaga, State ot New York, have invented certain new and useful Improvements in Card-i-Vriting llatens tor Type-lvriting Machines, of which the tollowingr is a specification.

This invention relates to card writ-ing attachments for typewriting machines and particularly an attachment for writing stencil cards such as used in addressiingy machines. ln'writing such cards the ordinarh.7 inkingl ribbon is rendered inoperative to cover the printingr point either by removing the ribbon from its guide or. as described in my Patent No. MHS-88 dated May 17, 1910, by renderingr the ribbon carrier or vibrator inoperative to carry the ribbon to the printing point. rlhe t-.vpe are thus made to strike the stencil material dirt-ell)1 and. as ordinarily used. no inlt impression would be niade. .lt is desirable, however. in making some classes o'l" stencil cards to inlt the iinpressions so that thev can be easil)Y read` and corrected il necessaryv and to effect the inli ingy ol: the impressions without interfering with the crushing ell'ect ol' the tjvpe upon the stencil material. l t'eed the ink ribbon over the platen and between the card and the platen at the printing;- point. rthe :ripressions on the stencil material are thus inhed on the back of the card and the \\,'ritin; is made legible.

Mv invention will be more tull'v under-A stood bv reference to the acconipaurinev drawings. in which.

Figure 1 is a front view of a tyi'iewriter plale'n etiuii ped with inv invention; i is a sectional view on the. line ot Figi. l g Fig. lil is a detail viewiotl the platen partly in section: Fig. 4 is an end `view of the platen; Fig. 5 is a sectional view on the line .f3-5 of Fig. 3, Fig'. l is a similar view with the platen feed pawl removed; Fig. 'i' is a rear view of the card holder; Fig. 8 is an end view thereof; Fig'. 5) illustrates n1 aus tor limiting the rotation ot the platen sha tt.

Referring to the drawings, l() indicates a platen shaft. which is adaiued to rest and turn `in the carriage bearings of a visible writing machine and ll indicates aportion ot the earriagy frame. Arranged on the shaft and ree is a cylindrical platen lo. Rigidly secured o turn indeendently thereof to the end of the platen, as shown in Figs. 3, 5 and G is a ratchet wheel 13. rthe platenis held against longitudinal movement on the shatt b v disks or colhn's lie, l5. which are suitably secured to the shaft and turn with it. To the collar a pawl lll is pivotallj.'

connected at 17. As shown this is a gravity pawl projecting from the inner surface or". a ring. thc weight of the ring" tending` to hold the pawl in engagement with the teeth of" the ratchet wheel and the rin;=` serviiu.;` to close the space between the dish 1.3 and. the platen and lreep the ratchet and ,rrwl 'free from dust and dirt. lt. will be seen that when the the ratchet wheel 13 without rotating' the The platen will he hel(l platen backward. Yfrom backward nwveinent b v -hfeed rolls. to be The disks l-i'-, lo', cai slots or openings lil a front ol' the platen isi U- l comprising! end pieces L l and a eros,A prece connecting the bottom ends et the pieces rthe card holder is provided with pintles which enter the slots in the arms l wher-eb;v the card holder nnrv be ted up or down as the platen shaft tur ed :'orwzu'd or bat-iiward. rl`he card holder is also provided at its ends with lugs 23 which slide in fixed guides 2l Jarried b v ay stationary bar 25. or other suitable support which is a stationaryv part of the machine frame. Upon the front ot the card holder are suitable spring` clips 2o tor yieldingly holding the ends of a card and at the bottoni ot the holder is a ledge 27 for sustaining the 'ard in the holder. Tl`he platen ma)7 be turned to space between lines b v the usual ratchet wheel 28 and its coperating pawls.

Cooperating with the platen are one. or more paper feed rolls 29. These feed rolls may be constructed and operated, for* instance. as described in my litevnt No. 829,465. Their usual function is to press the paper upon which writinv to he done against the platenv so that the paper will feed past the printingpoint when the platen is turned. n the prese-nt instance.. a broad ribbon 30 is passed around thed platen and v l, A feeds with the torward increments ot the Vplaten just as the paper does in ordinary machine or be wound upon another spool 'or Atiter passing through the machine the ribbon may otherwise temporarily disposed of.

be rewound upon the spool 31 and used again and again until the ink impressions from it become faint.

The operation of the card writing attach ment above described is as follows: The platen shaft is turned backward until the card holder is in position for writing the upper line of an address or other matter to be written upon a stencil card and to regulate the position of the upper line and the limits of moyement of the card holder up and down stops 32 may be provided' to cooperateV with the holding pawl 3? of-the ratchet wheel 28, as shown in Fig. l). Xfter writing the upper line the platen shaft is rotated in a direction to raise the card holder into position for writing the second line. rl`he gravity pawl lli engages the ratchet ifi and turns the platen with the shaft, bringing a new ribbon surface to the printing'point amLsup-plying fresh ribbon for inking the second'line of characters.

vIn like manner athird line may be written and a fresh inking surface provided therefor. "hen the card is completed it is taken from the holder and replaced by a new card and the holder is then dropped to position for writing the top line on the card b v rotating the platen shaft lmckwartl. which may be donc by means of the knob i. `Uhr!" ing this` backward movement of the 'p'laten the gravity pawl 1G slips oyer the teeth of the ratchet wheel 13 and the platen remains Stationary, being held from free movement by theA feed rolls29.

Having described my invention what I claim and 'desire to secure by Letters-Patent is,

i. in a typewriting machine, the combination with a platen and a card holden adjacent the platen, of a ribbon between the card holder and platen for inking the type impressions on the rear of the card, means for giving the card holder a line space movement, and means for moving the ribbon to present maw surfaces at the printing point. 2. In a typewriting machine, the eoxnbinationwith a platen, of a card holder arranged tangentially to the platen at the printing point, means for feeding the card holder to space between lines `on the card, and means cooperating with the platen for feeding a ribbon around the platen and in rear of the card holder, for the purpose set forth.

3. In a typewriting machine, the combination with a platen shaft, of a cylindrical platenimmnted on said shaft and free to rotate thereon, a ratchet and pawl device for rotating the platen during forward movements only of the platen shaft, a card holder adjacent the platen, and means on the platen shaft for sustaining the card holder, said card holder being movable up and down as the shaft moved backward and forward,-

respectively.

4. In a typewriting machine, the combination with a rotatable platen, of a card holder arranged tangentially to the platen at the printing point thereof, means for moving the card holder up and down to carry successive cards to the printing point, means for advancing the platen in one direction only, and means for feeding a ribbon over the surface of the platen at the printing point and in rear of the card holder, for the purposeset forth.

In ,a typewriting machine, the combination with a .platen carriage and platen mounted therein, of a card holding device` for sustaining the card over the printing lpoint on the platen, means for imparting a line space movement to the card holder, a

ribbonv spool supported on the'carriage, and means for feeding a ribbon from said spool around the platen and between the card holder and platen. for the purpose set forth.

(3. In a typewriting machine, the combinationWith a farriage having a platen shaft mounted therein, of a platen on said shaft and rotatable relatively thereto, arms fixed on said shaft, a card holdercarried by said arms adjacent the printing point on the platen and ratchet and pawl mechanism between the shaft and the platen whereby the platen is turned inone direction only as the platen shaft is rocke'dto'raise and lower the card' holder.

In testimony whereof I affix my signature inprese'nce of two witnesses. i

CARL GABRIE'LSGN.

VJitnesses: 

